EP4661004A3 - Vorrichtung und verfahren zur downsampling eines audiosignals - Google Patents

Vorrichtung und verfahren zur downsampling eines audiosignals

Info

Publication number
EP4661004A3
EP4661004A3 EP25211120.8A EP25211120A EP4661004A3 EP 4661004 A3 EP4661004 A3 EP 4661004A3 EP 25211120 A EP25211120 A EP 25211120A EP 4661004 A3 EP4661004 A3 EP 4661004A3
Authority
EP
European Patent Office
Prior art keywords
signal
filter bank
audio signal
downsampling
sample rate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP25211120.8A
Other languages
English (en)
French (fr)
Other versions
EP4661004A2 (de
Inventor
Lars Villemoes
Per Ekstrand
Sascha Disch
Frederik Nagel
Stephan Wilde
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Dolby International AB
Original Assignee
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Dolby International AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV, Dolby International AB filed Critical Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Publication of EP4661004A2 publication Critical patent/EP4661004A2/de
Publication of EP4661004A3 publication Critical patent/EP4661004A3/de
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/04—Time compression or expansion

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Auxiliary Devices For Music (AREA)
  • Networks Using Active Elements (AREA)
EP25211120.8A 2010-03-09 2011-03-04 Vorrichtung und verfahren zur downsampling eines audiosignals Pending EP4661004A3 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US31212710P 2010-03-09 2010-03-09
EP19179788.5A EP3570278B1 (de) 2010-03-09 2011-03-04 Hochfrequenz-rekonstruktion eines eingangstonsignals mit kaskadierten filterbänken
EP22203358.1A EP4148729B1 (de) 2010-03-09 2011-03-04 Vorrichtung zur unterabtastung eines audiossignals
EP11707400A EP2545548A1 (de) 2010-03-09 2011-03-04 Vorrichtung und verfahren zur verarbeitung eines eingangstonsignals mit kaskadierten filterbänken
PCT/EP2011/053315 WO2011110500A1 (en) 2010-03-09 2011-03-04 Apparatus and method for processing an input audio signal using cascaded filterbanks
EP24209945.5A EP4475124B1 (de) 2010-03-09 2011-03-04 Herunterabtastung eines audiosignals

Related Parent Applications (4)

Application Number Title Priority Date Filing Date
EP22203358.1A Division EP4148729B1 (de) 2010-03-09 2011-03-04 Vorrichtung zur unterabtastung eines audiossignals
EP19179788.5A Division EP3570278B1 (de) 2010-03-09 2011-03-04 Hochfrequenz-rekonstruktion eines eingangstonsignals mit kaskadierten filterbänken
EP11707400A Division EP2545548A1 (de) 2010-03-09 2011-03-04 Vorrichtung und verfahren zur verarbeitung eines eingangstonsignals mit kaskadierten filterbänken
EP24209945.5A Division EP4475124B1 (de) 2010-03-09 2011-03-04 Herunterabtastung eines audiosignals

Publications (2)

Publication Number Publication Date
EP4661004A2 EP4661004A2 (de) 2025-12-10
EP4661004A3 true EP4661004A3 (de) 2026-02-25

Family

ID=43987731

Family Applications (6)

Application Number Title Priority Date Filing Date
EP19179788.5A Active EP3570278B1 (de) 2010-03-09 2011-03-04 Hochfrequenz-rekonstruktion eines eingangstonsignals mit kaskadierten filterbänken
EP11707400A Ceased EP2545548A1 (de) 2010-03-09 2011-03-04 Vorrichtung und verfahren zur verarbeitung eines eingangstonsignals mit kaskadierten filterbänken
EP24209945.5A Active EP4475124B1 (de) 2010-03-09 2011-03-04 Herunterabtastung eines audiosignals
EP22203358.1A Active EP4148729B1 (de) 2010-03-09 2011-03-04 Vorrichtung zur unterabtastung eines audiossignals
EP25211120.8A Pending EP4661004A3 (de) 2010-03-09 2011-03-04 Vorrichtung und verfahren zur downsampling eines audiosignals
EP11715452.6A Active EP2545553B1 (de) 2010-03-09 2011-03-04 Vorrichtung und verfahren zur verarbeitung eines tonsignals mit patchgrenzenausrichtung

Family Applications Before (4)

Application Number Title Priority Date Filing Date
EP19179788.5A Active EP3570278B1 (de) 2010-03-09 2011-03-04 Hochfrequenz-rekonstruktion eines eingangstonsignals mit kaskadierten filterbänken
EP11707400A Ceased EP2545548A1 (de) 2010-03-09 2011-03-04 Vorrichtung und verfahren zur verarbeitung eines eingangstonsignals mit kaskadierten filterbänken
EP24209945.5A Active EP4475124B1 (de) 2010-03-09 2011-03-04 Herunterabtastung eines audiosignals
EP22203358.1A Active EP4148729B1 (de) 2010-03-09 2011-03-04 Vorrichtung zur unterabtastung eines audiossignals

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP11715452.6A Active EP2545553B1 (de) 2010-03-09 2011-03-04 Vorrichtung und verfahren zur verarbeitung eines tonsignals mit patchgrenzenausrichtung

Country Status (18)

Country Link
US (8) US9792915B2 (de)
EP (6) EP3570278B1 (de)
JP (2) JP5588025B2 (de)
KR (2) KR101414736B1 (de)
CN (2) CN102939628B (de)
AR (2) AR080477A1 (de)
AU (2) AU2011226212B2 (de)
BR (5) BR112012022574B1 (de)
CA (2) CA2792450C (de)
ES (4) ES3058766T3 (de)
HU (1) HUE070311T2 (de)
MX (2) MX2012010416A (de)
MY (1) MY154204A (de)
PL (4) PL2545553T3 (de)
RU (1) RU2586846C2 (de)
SG (1) SG183967A1 (de)
TW (2) TWI444991B (de)
WO (2) WO2011110499A1 (de)

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